Car part repair question!

i think around 1000-2000 INR coz it takes money to replace and around 200 rs labour cost...water pumpps always are expensive

I agree with #1 as far as what kind of car or truck it is in, and who is doing the work. There is such a thing as a blue book for pricing repairs. Some japanese cars are very tricky to do if you have never pulled one and it could take as long as 8 hours if you go about it wrong. Water pumps used to be very easy operation and quite frequently needed but nowadays it's sort of like changing a more major component due to the other stuff that needs to come off to get to it. How much is the car worth and how many miles left to wear it out?

shouldnt take more than one hour

Well it really depends on what kind of car you need the water pump replaced. My experience is as follows. I6 years ago I owned a 1987 Saab 900 and needed the water pump replaced. It so happens that in 1987 Saabs, the water pump was located somewhere under the engine. So.....to make a long story short, even though it only took a day to fix, it was almost $500 for parts and labor.